What’s new in Svelte: July 2026
SvelteKit config in vite.config, explicit env vars and new declaration tag support across the toolchain
Svelte Blog
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Posts by Svelte Blog
What’s new in Svelte: June 2026
Better forms, new long-lived remote query APIs and TypeScript 6 support in language-tools
What’s new in Svelte: May 2026
Svelte CLI Community Add-ons, TypeScript 6.0 support in SvelteKit
What’s new in Svelte: April 2026
MCP in OpenCode, functions in config and error boundaries on the server
What’s new in Svelte: March 2026
createContext in programmatic Svelte, comments in HTML tags and the State of JS
What’s new in Svelte: February 2026
Custom select elements, new button props for remote functions and improvements across the Node and Vercel adapters
What’s new in Svelte: January 2026
Hydration with CSPs, automatic Cloudflare adapter setup, and AI works better now with Svelte!
What’s new in Svelte: December 2025
A new Svelte Society website and file upload streaming in forms
What’s new in Svelte: November 2025
Svelte MCP, typed contexts and improved form validation in remote functions
What’s new in Svelte: October 2025
Improved Remote Functions, sv create from playgrounds and experimental async SSR
What’s new in Svelte: September 2025
Deno support, await in consts and open telemetry support
Introducing integrated observability in SvelteKit
SvelteKit apps can now emit OpenTelemetry traces and reliably set up observability instrumentation using instrumentation.server.ts
What’s new in Svelte: August 2025
Async Svelte is out - with all the fixins
What’s new in Svelte: July 2025
Vite 7 and Rolldown support, better traces and vitest browser mode support
What’s new in Svelte: June 2025
Attachments are the new actions, plus better snippets and classes
Bringing Svelte Summit to the whole community
We’re sponsoring the release of talks from Barcelona, starting this weekend
What’s new in Svelte: May 2025
Svelte Summit soon! Plus, await in components
What’s new in Svelte: April 2025
Writable $derived statements, async reroute and better request event access
What’s new in Svelte: March 2025
Congrats to the SvelteHack winners! Plus improved SSR in Svelte and SvelteKit
What’s new in Svelte: February 2025
New types, pnpm 10 support and better syntax highlighting
What’s new in Svelte: January 2025
Svelte 5 just keeps getting better. Plus, an in-person Svelte Summit!
What’s new in Svelte: December 2024
A better CLI and a bunch of UI libraries now support Svelte 5
What’s new in Svelte: November 2024
New features in Svelte 5 and a ton of new community libraries
Introducing the new Svelte CLI
Tailwind, auth, databases and more — just an <code>npx sv</code> away
What’s new in Svelte: October 2024
Better each blocks and a callstack for infinite loops
What’s new in Svelte: September 2024
More useful <code>svelte:options</code> and <code>:global</code>, plus the deprecation of <code><svelte:component></code> in Svelte 5
What’s new in Svelte: August 2024
Significant hydration improvements, customizable warnings, and a new API: <code>createRawSnippet</code>
What’s new in Svelte: July 2024
svelte/events, simpler elements and more optional options
What’s new in Svelte: June 2024
Better <code>bind</code>s, migration tooling and a new comparison rune
What’s new in Svelte: May 2024
Svelte 5 Release Candidate and all the other highlights from Svelte Summit Spring
What’s new in Svelte: April 2024
Svelte Summit Spring on April 27! Plus: reactive <code>Map</code>, <code>Date</code> and <code>Set</code>
What’s new in Svelte: March 2024
Nested CSS support and a much cleaner client-side API for Svelte 5
What’s new in Svelte: February 2024
New in Kit: <code>reroute</code>, <code>emulate</code> and more!
What’s new in Svelte: January 2024
SvelteKit 2 and a much-improved $state rune
What’s new in Svelte: December 2023
Svelte 5 preview announced at Svelte Summit Fall 2023
What’s new in Svelte: November 2023
Svelte Summit on Nov 11 and better DevEx for all!
Hacktoberfest 2023 with SvelteKit
SvelteKit joins in the Hacktoberfest event in 2023
What’s new in Svelte: October 2023
Reactions to Runes and SvelteKit +server fallbacks
What’s new in Svelte: September 2023
New parameters in SvelteKit’s redirect and an onNavigate lifecycle function come to life
Unlocking view transitions in SvelteKit 1.24
Streamlined page transitions with onNavigate
What’s new in Svelte: August 2023
Extending Custom Element Classes and new +server exports
What’s new in Svelte: July 2023
Svelte 4.0, new website and a tour around the community
svelte.dev: A complete overhaul
The new site comes with accessibility fixes, new features and bottom navbar
Announcing Svelte 4
Updated performance, developer experience, and site
What’s new in Svelte: June 2023
SvelteHack winners, lots of new bindings, Svelte 4.0.0-next.0, and a bunch of new features in SvelteKit
What’s new in Svelte: May 2023
New Ambassadors, a new ESLint plugin and a whole bunch of SvelteHack submissions
What’s new in Svelte: April 2023
Loads of new Svelte compiler features, plus Svelte Summit and SvelteHack
Zero-effort type safety
More convenience and correctness, less boilerplate
What’s new in Svelte: March 2023
SvelteHack, post-1.0 SvelteKit improvements and a huge showcase
Streaming, snapshots, and other new features since SvelteKit 1.0
Exciting improvements in the latest version of SvelteKit
What’s new in Svelte: February 2023
Minor versions and major satisfaction
What’s new in Svelte: January 2023
SvelteKit 1.0, tutorial, and type definitions for Svelte elements.
What’s new in Svelte: December 2022
Rounding the corner to SvelteKit 1.0
What’s new in Svelte: November 2022
Better forms, routes and inline styles across SvelteKit and Svelte
What’s new in Svelte: October 2022
Svelte Summit, <code>use:enhance</code>, and a SvelteKit Release Candidate!
What’s new in Svelte: September 2022
Migrating to SvelteKit’s new filesystem-based router
What’s new in Svelte: August 2022
Changes to SvelteKit’s <code>load</code> before 1.0 plus support for Vite 3 and <code>vite.config.js</code>!
What’s new in Svelte: July 2022
Faster SSR, language tools improvements and a new paid contributor!
What’s new in Svelte: June 2022
Cancellable dispatched events, deeper {@const} declarations and more!
What’s new in Svelte: May 2022
Dynamically switch between HTML element types with <code><svelte:element></code>
What’s new in Svelte: April 2022
Goodbye fallthrough routes, hello param validators!
What’s new in Svelte: March 2022
Svelte Summit Spring is coming... and page endpoints are here!
What’s new in Svelte: February 2022
Rapid-fire releases across Svelte, SvelteKit and the community
Accelerating Svelte’s Development
Scaling the team, building partnerships, and growing the community
What’s new in Svelte: January 2022
Faster builds with SvelteKit and a much anticipated REPL feature
What’s new in Svelte: December 2021
Svelte Summit Fall 2021 Recap, Rich Harris joins Vercel, and Kevin goes full-time on Svelte Society
What’s new in Svelte: November 2021
Over 5000 stars to light up the showcase
What’s new in Svelte: October 2021
A whole year of “What’s new in Svelte”
What’s new in Svelte: September 2021
StackOverflow’s most loved web framework
What’s new in Svelte: August 2021
Shadow DOM, export and await - oh my!
What’s new in Svelte: July 2021
Keeping cool with fixes, TypeScript tooling and tonnes of new features
What’s new in Svelte: June 2021
Progress towards SvelteKit 1.0 and tighter TypeScript/Svelte integrations in language tools
What’s new in Svelte: May 2021
Working toward SvelteKit 1.0 and a showcase full of SvelteKit sites!
What’s new in Svelte: April 2021
SvelteKit beta and new way to use slots
What’s new in Svelte: March 2021
Call for Svelte Summit Speakers! Improved SSR, non-HTML5 compilation targets, and ESLint TypeScript support
What’s new in Svelte: February 2021
Integrations and improvements at lightning speed...
What’s new in Svelte: January 2021
A Svelte-packed showcase to kick-off the new year!
What’s new in Svelte: December 2020
Better tooling, export maps and improvements to slots and context
What’s the deal with SvelteKit?
We’re rethinking how to build Svelte apps. Here’s what you need to know
What’s new in Svelte: November 2020
Slot forwarding fixes, SvelteKit for faster local development, and more from Svelte Summit
What’s new in Svelte: October 2020
New object methods, in-depth learning resources and tons of integration examples!
Write less code
The most important metric you’re not paying attention to
Svelte for new developers
Never used Node.js or the command line? No problem
Virtual DOM is pure overhead
Let’s retire the ‘virtual DOM is fast’ myth once and for all
Sapper: Towards the ideal web app framework
Taking the next-plus-one step
The zen of Just Writing CSS
I would say this is the future, but we’re already doing it.
Frameworks without the framework: why didn’t we think of this sooner?
You can’t write serious applications in vanilla JavaScript without hitting a complexity wall. But a compiler can do it for you.